309999746

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1\times {\mathrm{661}}^1$

素因数の和:1050

約数の個数: 32

約数和(自身を含む): 538285440

約数和(自身を除く): 228285694

約数列:

[1, 2, 7, 14, 139, 241, 278, 482, 661, 973, 1322, 1687, 1946, 3374, 4627, 9254, 33499, 66998, 91879, 159301, 183758, 234493, 318602, 468986, 643153, 1115107, 1286306, 2230214, 22142839, 44285678, 154999873, 309999746]

約数ペア:

[(1, 309999746), (2, 154999873), (7, 44285678), (14, 22142839), (139, 2230214), (241, 1286306), (278, 1115107), (482, 643153), (661, 468986), (973, 318602), (1322, 234493), (1687, 183758), (1946, 159301), (3374, 91879), (4627, 66998), (9254, 33499)]